EYSDON Focal Length Extension Tube Kits 3mm 5mm 7mm 10mm 12mm 15mm 20mm 30mm For Astronomical Telescope photography T2 Extending Ring
Product Description:
Fully metal construction and anodizing aluminum process, durable for long time use.
Use this extension tube for getting the correct image scale or the exact spacing required for reducers or field flatteners.
The extension tube has a T2 interior thread and a T2 exterior thread for solving spacing problems in astrophotography and eliminates a range of focusing problems.
The required spacing can be achieved by combining several extenders of differing lengths.
Type: Astronomical Telescope T2 thread Extension Tube
Extension Tube Height: 3mm 5mm 7mm 10mm 12mm 15mm 20mm 30mm
Male thread: M42*0.75mm
Female thread: M42*0.75mm
Outer Diameter: 44mm
Color: Black
Package Include:
1 x Extension Tube Kits (3/5/7/10/12/15/20/30mm)
Due to different production batches, the two paint color on the surface(Matte black; shiny black) are shipped randomly.
Please Note:
Please allow 0-2mm error due to manual measurement. pls make sure you do not mind before you bid.
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!
If you really care about these details, pls DO NOT order.
Why use its£¿
When you cannot get to the right focal plane for focusing with a camera or eyepiece. This extension tube kit solves this problem. You can use this extender with any camera or eyepiece or with various adapters. The M42 * 0.75 threads on both ends make it extremely versatile.
Use this extender for obtaining the correct image scale or for the exact spacing required for a reducer or field flattener.
You can reach the extension length required by combining several extenders of different lengths.
3mm Extension Tube Height
5mm Extension Tube Height
7mm Extension Tube Height
10mm Extension Tube Height
12mm Extension Tube Height
15mm Extension Tube Height
20mm Extension Tube Height
30mm Extension Tube Height